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Gedung Manajemen Puspiptek Gedung 720, Jl. Puspitek, Muncul, Kec. Setu, Kota Tangerang Selatan, Banten 15314, Tangerang Selatan, Provinsi Banten, 15314 Alamat Penerbit : Gedung BJ Habibie, JI. M.H. Thamrin NO. 8, Kb. Sirih, Kec. Menteng, Jakarta Pusat, Provinsi DKI Jakarta, 10340, Tangerang Selatan, Provinsi Banten
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Metalurgi
Published by BRIN Publishing
ISSN : 01263188     EISSN : 24433926     DOI : 10.55981/metalurgi
Core Subject : Science, Engineering,
Industrial & Manufacturing Engineering Materials Science & Nanotechnology
The objective of this journal is the online media for disseminating results in Research and Development and also as a media for a scientist and researcher in the field of Metallurgy and Materials. The scope if this journal related on: Advanced materials and Nanotechnology Materials and Mineral characterization and Analysis Metallurgy process: extractive Ceramic and composite Corrosion and its technological protection Mineral resources manifestation Modelling and simulation in materials and metallurgy Engineering Metallurgy instrument
Arjuna Subject : Ilmu Material (semua kategori) - Ilmu Material (Lain-Lain)
Articles 287 Documents
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METODA FOTO BACK-REFLECTION LAUE UNTUK MENENTUKAN ARAH SUMBU KRISTAL TUNGGAL La2-2xSr1+2xMn2 O7 (x=0,4) Agung Imaduddin
Metalurgi Vol 26, No 3 (2011): Metalurgi Vol. 26 No. 3 Desember 2011
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (385.453 KB) | DOI: 10.14203/metalurgi.v26i3.16

Abstract

La2-2x Sr 1+2x Mn2 O7   (atau disebut  LSMO 327)  mempunyai sifat  magnetoresistance terbesar dibandingkan grup lainnya, ( seperti LSMO 113 ). Dalam pembuatan kristal tunggal diperlukan metoda yang praktis untuk menentukan arah sumbu kristal tunggalnya. Pada tulisan ini akan dipaparkan metoda penentuan arah sumbu kristal tunggal tersebut dengan memakai foto back-reflection Laue untuk mengetahui arah sumbu a, b dan c terhadap arah penumbuhan kristalnya. Dalam penelitian ini digunakan 2 sampel kristal tunggal LSMO 327 dengan konsentrasi Sr pada x=0,4. Dari metoda back reflection Laue tersebut, diketahui bahwa kristal tunggal LSMO 327 memiliki sudut arah sumbu c dengan sudut 80° terhadap arah pertumbuhan kristalnya. Sedangkan arah sumbu a dan b tidak terlihat sama pada kedua sample. AbstractMn oxide materials have long been known to have a large magnetoresistance properties. LA2-2xSr1+2xMn2O7 (or called LSMO 327) has the largest magnetoresistance properties compared to other groups (such as LSMO 113). The preparation of single crystals required a practical method to determine the direction of the axis of single crystals. In this paper, we reported a method of determining the direction of the axis of single crystals by using back-reflection Laue photographs to determine the direction of the axis a, b and c to the direction of crystal growth. We used two samples of single crystal LSMO 327 x = 0.4. By the back-reflection Laue method, we know that c-axis of LSMO 327 single crystals have an angle of 80° to the direction of crystal growth. While the direction of the a-axis and b-axis does not look the same in both samples.
PERGESERAN SUHU KRITIS SUPERKONDUKTOR Bi-Pb-Sr-Ca-Cu-O PADA MEDAN MAGNET TINGGI[The Shift In Critical Temperature Of Bi – Pb – Sr – Ca – Cu – O Superconductors In High Magnetic Field] Agung Imaduddin; Sigit Dwi Yudanto; Bintoro Siswayanti; Hendrik Hendrik
Metalurgi Vol 29, No 3 (2014): Metalurgi Vol.29 NO.3 Desember 2014
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (302.529 KB) | DOI: 10.14203/metalurgi.v29i3.296

Abstract

STUDY TO MICROSTRUCTURE AND MECHANICAL PROPERTIES OF Mg-Zn-Fe-Cu-Co AS HIGH ENTROPY ALLOYS FOR URETERAL IMPLANT APPLICATION Andi Mulya Ashari
Metalurgi Vol 36, No 1 (2021): Metalurgi Vol. 36 No. 1 April 2021
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (644.364 KB) | DOI: 10.14203/metalurgi.v36i1.584

Abstract

Magnesium and its alloys are promising candidates for degradable materials with good biocompatibility. Alloys based on Mg-Zn-Fe-Cu-Co compositions were designed using the equiatomic method of high entropy alloy. This paper discusses the microstructure and mechanical properties of these new high entropy alloys. Pure Magnesium (60 µm), Zinc (45 µm), Fe (10 µm), Cu (63 µm), and Co (1 µm) powder were mixed and milled using a shaker mill at 700 rpm for the 1800s. The resulting milled powders were compacted and sintered at 300 MPa for 180s and 600 MPa for 120s. Sintering was performed at 700oC for 2 hours in a tube vacuum furnace at a 5 °C/min heating rate under a high purity argon atmosphere. Microstructural analyses and mechanical tests were performed based on the American standard of testing and measurement. The alloys were basically multiphase and crystalline. The 20Mg-20Zn-20Fe-20Cu-20Co alloy consisted of the HCP phase and cubic phase. The physical and mechanical properties of Mg-Zn-Fe-Cu-Co were affected by the magnesium content in the matrix alloys. The presence of pores indicated uncomplete compaction and sintering process. The alloys have a medium hardness of between 286.06 HV - 80.98 HV, while the densities of the alloys were relatively moderate in the range of 3.057 g.cm-3 to 1.71 g.cm-3. Solid solution and intermetallic precipitation strengthening were believed the primary strengthening mechanics of the alloys. It is concluded that high entropy is a promising method for the processing of Mg alloys. Alloy with a chemical composition of 20Mg-20Zn-20Fe-20Cu-20Co had optimal mechanical properties that meet the minimum requirements of high entropy alloys as candidates for ureteral implant applications.
PERBANDINGAN KEKERASAN DAN KETAHANAN ABRASI PROSES PELAPISAN KROMISASI, BORONISASI DAN VANADISASI PADA BESI COR KELABU[Comparison of Hardness And Abrassion Resistant of Boronizing Vanadizing and Chromizing Coated Gray Cast Iron] Toni Bambang Romijarso
Metalurgi Vol 28, No 3 (2013): Metalurgi Vol.28 No.3 Desember 2013
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (850.718 KB) | DOI: 10.14203/metalurgi.v28i3.260

Abstract

cover, daftar isi, abstrak vol 34 Des 2019 Lia Andriyah
Metalurgi Vol 34, No 3 (2019): Metalurgi Vol. 34 No. 3 Desember 2019
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (12476.962 KB)

Abstract

PENGUKURAN PENGARUH TEKANAN PERAH PADA TEGANGAN SISA PADUAN AlSi SQUEEZE CASTING DENGAN TEKNIK DIFRAKSI SINAR-X[Measurements of Pressure Die Effects on The Residual Stresses of Squeeze Casting AlSi Alloys using X-Ray Diffraction Techniques] Parikin Parikin; S Suminta
Metalurgi Vol 27, No 3 (2012): Metalurgi Vol.27 No.3 Desember 2012
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (528.038 KB) | DOI: 10.14203/metalurgi.v27i3.230

Abstract

PROSES DEKARBURISASI NICKEL PIG IRON Adil Jamali; Ra Binudi; Bintang Adjiantoro
Metalurgi Vol 29, No 2 (2014): Metalurgi Vol.29 No.2 Agustus 2014
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (528.881 KB) | DOI: 10.14203/metalurgi.v29i2.287

Abstract

PENGARUH PENAMBAHAN MAGNESIUM TERHADAP SIFAT MEKANIK, MIKROSTRUKTUR DAN ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY POLIMER PLA/ABS UNTUK MATERIAL IMPLAN BIOABSORBABEL Aprilia Erryani
Metalurgi Vol 35, No 3 (2020): Metalurgi Vol. 35 No. 3 Desember2020
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (697.365 KB) | DOI: 10.14203/metalurgi.v35i3.567

Abstract

Pada penelitian ini telah dilakukan pembuatan implan bioabsorbable dengan bahan polimer logam komposit (PLA/ABS/Mg) dengan menggunakan metode solvent casting dengan tiga komposisi yakni PLA:ABS 70:30, 60:40, 80:20 dengan komposisi Mg masing-masing 5%, 10% dan 15%  kemudian dilarutkan dengan clorofoam sebanyak 17 mL sehingga mendapatkan sampel berbentuk film. Penelitian ini bertujuan untuk mengetahui variasi optimal  PLA/ABS terhadapat karakterisitik sifat mekanik, morfologi, impedansi dengan adanya penambahan Mg. Hasil karakterisasi sifat mekanik menggunakan uji tarik dengan komposisi PLA:ABS 80:20 pada variasi Mg 10% dan 15% menunjukkan hasil yang optimal, sehingga Mg terbukti meningkatkan sifat mekanik dari PLA. Semakin banyak penambahan variasi Mg menunjukkan peningkatan nilai kekerasan vikers dan impedansi pada polimer logam komposit. Hasil pengamatan dengan menggunakan SEM pada kompoisi PLA:ABS 70:30 menunjukan bahwa homogenitas Mg didalam polimer telah tercapai dengan baik.
PENGARUH TEMPERATUR NUKLEASI TERHADAP GEOMETRI PRODUK MAGNESIUM KARBONAT DARI BAHAN BAKU DOLOMIT MADURA[Effect of Temperature on The Geometric Product Nucleation Magnesium Carbonate of Raw Materials Dolomite Madura] Solihin Solihin; Tri Arini; Eni Febriana
Metalurgi Vol 28, No 2 (2013): Metalurgi Vol.28 No.2 Agustus 2013
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (425.451 KB) | DOI: 10.14203/metalurgi.v28i2.249

Abstract

FABRIKASI NANOTUBES TiO2 DENGAN TINGKAT NANOKRISTALINITAS TINGGI MELALUI PERLAKUAN KOMBINASI ANIL DAN PASCA-HIDROTERMAL UNTUK APLIKASI SEL SURYA TERSENSITISASI ZAT PEWARNA[Fabrication of Highly Nanocrystalline TiO2 Nanotubes Through a Combination of Pre-Annealing and Hydrothermal Treatment for Dye Sensitized Solar Cell Application] Alfian Ferdiansyah; Akhmad Herman Yuwono; Norifon Sofyan; Indriana Kartini; Togo Hadi Pujianto; Badrul Munir
Metalurgi Vol 27, No 2 (2012): Metalurgi Vol. 27 No. 2 Agustus 2012
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (735.875 KB) | DOI: 10.14203/metalurgi.v27i2.149

Abstract

Page 10 of 29 | Total Record : 287

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